The SE40DD is a stationary louver that is 4" deep, and has double drainable blades at a 45 degree blade angle. It features:
- 44% free area.
- Double drain gutters in each blade, and downspouts in jambs and mullions to drain water from louver for minimum water cascade from blade to blade.
- Hidden mullions for attractive appearance.
- All aluminum construction for low maintenance and high resistance to corrosion.
- Low pressure drop and low water penetration.